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5.4.8 VGET
Syntax
<address>VGET:<var_index><CR>
Description
Returns value of an internal configuration variable (VAR.)
Data Parameters Sent
var_index is index number for internal VAR as follows:
Var
Index
Name Description Allowable Range
0 analog_range Full-Scale concentration
range for Analog Output
scaling
5.0 – 400.0 (Units are
current unit of measure,
wt% or g/Nm3)
1 azero_enable Auto-Zero Enable VAR.
(only valid if Auto-Zero
hardware is installed)
0 = Off
1 = On
2 azero_period Period for Auto-Zero
Calibration timer
5.0 - 86400.0 Seconds
3 carrier_weight Mol weight of carrier gas
for wt% calculations (32.0
= O2)
27.0 – 32.0 mol weight
4 comm_mode Not Used N/A
5 iir_filt Digital Concentration
filter
0.05 – 1.0
(1.0 = No Filtering, lower
values increases filtering)
6 conc_units O3 Concentration
measurement units
0 = wt%
1 = g/Nm3
Response
<address>:<var_value>#<checksum><CR>
Example
Command:
1VGET:0<CR> - Request analog_range value
Response:
1:15.0#303 - analog_range returned as 15.0 (wt%)
P/N 03662D Teledyne API Model 460H O
3
Monitor Operator Manual - Page 30